Mobile Phone use while Driving after a New Law: Observational study

Aims: To identify the prevalence of mobile phone while driving after the introduction of the New Zealand legislation (in 2009), and to study the socio-demographic characteristics of mobile phone users. Method: We devised and tested an observation method. This was used to examine the use of mobile phones by drivers in cars at or near traffic lights and away from traffic lights at three locations in Wellington (of contrasting area deprivation). In addition, we performed key informant interviews to provide a background context. Results : A total of 9520 cars “away from traffic lights” and 8335 at “traffic lights” were observed. 1.34% of drivers were observed using mobile phones away from traffic lights, and 1.87% at or near traffic lights. These levels were lower than a pre-law study in Auckland (at 3.9%). Under 25’s were significantly more likely to use their mobile phones compared to over 25’s. There were some significant differences between prevalence of mobile phone use in the two suburban sites, and also with the Central Business District. Conclusion: Mobile phone use by drivers appears to have declined after the new law, though other explanations for the differences in the pre- and post-law studies are possible. Nevertheless, mobile phone use amongst drivers remains common in New Zealand and to further reduce this hazard, the Government may need to consider such options as: additional mass media campaigns around the hazard, enhanced enforcement, and increased level of fines.